felipeksw:
Part of the project is management some tanks each one do the same task, but the processes can run using one tank or 10. To keep the project scalable I'm planning using one arduino for each tank ... if the production expand I only "clone" this controller and it works stand alone.If I have 4 tanks in one place connected in one network and In other place I have other 3 tanks sharing other network, I will need collect data 2 times only instead 7 times (each arduino).
This is incomprehensible, but there is no point in quibbling, particularly as I haven't the faintest idea of what you are measuring, just so long as you are aware that the distances aren't that great and one Arduino can handle a swag of sensors.
So using an arduino as data coelctor is also a chance to study its architecture.
Again I wouldn't want to get pedantic, but you will get all the study of architecture you will want with the other Arduinos. They are all collecting data. The exercise is how you get from the Arduino world to the outside world so that you can do something with it.